<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>Document</title>
    <script src="../lib/vue-2.6.12.js"></script>
</head>
<body>
    <div id="b">
      <tabbar></tabbar>

    </div>
    <script>
Vue.component("tabbar",{
template:`
    <div style="background:blue">
    tabbar
    <tabbarChild></tabbarChild>
    </div>
      `,

components:{
"tabbarChild":{
    template:`<p>这是一个局部组件</p>`
}
}

})

var vm=new Vue({
    el:'#b'
})

    </script>
</body>
</html>